Automobile Engineering in ME
The main function of intake manifold is that it

Reduces intake noise
Cools the intake air to a suitable temperature
Distributes intake air equally to the cylinders
Promotes the mixture of air and fuel

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Automobile Engineering in ME
The main feature of Macpherson strut suspension is that

Non vertical external forces are supported by the suspension arms
The assembly is slightly more complicated in design
The vertical size of the suspension can be made more compact
The unsprung mass in lighter

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Automobile Engineering in ME
The function of a radiator fan in the cooling system is that

It cools the engine by blowing air onto the cylinder block
It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump
It blows air through the radiator when necessary
It draws heat out of the engine compartment

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